.theme-toggle {
  position: relative;
  display: inline-flex;
  width: 56px;
  height: 32px;
  margin: 0;
  vertical-align: middle;
}

.theme-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  background-color: #ccc;
  border-radius: 32px;
  height: 100%;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
  padding: 0;
  box-sizing: border-box;
  transition: background-color 0.3s ease;
}

.slider-knob {
  height: 24px;
  width: 24px;
  background-color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 4px;
  left: 4px;
  transition: transform 0.3s ease;
  z-index: 1;
}

.theme-toggle input:checked + .slider {
  background-color: #2ecc71;
}

.theme-toggle input:checked + .slider .slider-knob {
  transform: translateX(24px);
}

.icon {
  width: 16px;
  height: 16px;
  display: block;
  position: absolute;
  transition: opacity 0.3s ease;
}

.sun {
  opacity: 1;
}

.moon {
  opacity: 0;
}

.theme-toggle input:checked + .slider .sun {
  opacity: 0;
}

.theme-toggle input:checked + .slider .moon {
  opacity: 1;
}